Kingflex
Kingflex
Explore our core product portfolio manufactured to international ASTM, BS, and CE standards for high-performance thermal insulation and soundproofing.
The global industrial and building sectors are undergoing a massive decarbonization shift. Thermal and cryogenic insulation systems are no longer treated as passive elements but as critical active assets in energy conservation. High-performance elastomeric rubber foam (NBR/PVC) and structural rock wool solutions form the front line against energy dissipation.
Whether mitigating heat gain in HVAC chilled water loops, preventing condensation on commercial ductwork, or handling liquefied gases at cryogenic thresholds, precision material engineering determines operational efficiency. As carbon taxation and strict building codes (e.g., EU Energy Performance of Buildings Directive, ASHRAE 90.1) take hold globally, selecting verified, low-conductivity insulation is paramount for engineering firms and procurement managers alike.
Our primary production facility is strategically located in Dacheng, China—historically recognized as the capital of green building materials. This industrial cluster provides an unparalleled ecosystem of upstream raw materials, polymer research, and advanced tooling engineering. This integrated supply chain enables Kingflex to achieve scale economies that directly translate to cost advantages for our global distributors.
Operating 5 massive fully automated continuous assembly lines, our manufacturing process utilizes digital density feedback monitors to maintain density tolerances of 40-55 kg/m³ across all production batches. This extreme level of automation reduces human error, cuts down manufacturing waste, and yields an annual capacity exceeding 600,000 cubic meters. By consolidating international trading expertise directly with our core production facility, we cut middleman margins and deliver optimized factory-direct quotes to over sixty-six countries.
Backed by the Jinwei Group (established in 1979 as the pioneer manufacturer of thermal insulation materials north of the Yangtze River), Kingflex leverages over four decades of thermal engineering heritage. Our specialized team consists of 8 professional engineers in our dedicated R&D department, 6 international customer success sales executives, and 230 highly skilled production operators.
Our research labs consistently refine NBR/PVC polymer formulations to improve flame retardancy, smoke suppression indices, and low-temperature flexibility. This continuous optimization has enabled our systems to secure critical international quality benchmarks including BS 476, CE, REACH, RoHS, UL94, and ASTM certifications, ensuring seamless compliance across global jurisdictions.
Detailed physical properties and parameters of Kingflex NBR/PVC elastomeric insulation materials.
| Parameter | Value / Range |
|---|---|
| Material Base | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Thickness Range | 6mm to 50mm |
| Apparent Density | 40 to 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ |
| Thermal Conductivity | ≤ 0.034 W/(m·K) at 0℃ |
| Closed Cell Rate | > 98% |
| Compression Resilience | ≥ 80% |
| Fire Rating Code | Class 0 / Class 1 (BS 476 Part 7 / Part 6) |
| Parameter | Value / Range |
|---|---|
| Material Base | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Thickness Range | 9mm to 40mm |
| Inside Diameter (ID) | 6mm to 114mm |
| Apparent Density | 40 to 55 kg/m³ |
| Moisture Resistance | μ factor ≥ 10,000 (Water vapor permeability barrier) |
| Acoustic Decoupling | Excellent structural sound absorption |
| Corrosion Prevention | Chlorine and Ammonia free, zero risks of CUI |
| Traceability | Full batch tracking code printed on packaging |
Full compliance and strict laboratory testing are crucial to our E-E-A-T values. Review our credentials and facility quality assurance processes.
Transparency and integrity in action. See how we support our engineering clients, procurement managers, and wholesale partners through actual client communication logs.
How specialized elastomeric rubber foam sheets and tubes are utilized across critical industries globally.
Our NBR/PVC pipes are installed extensively on HVAC systems to control condensation. Due to their closed-cell structure, moisture cannot penetrate the matrix, maintaining a high level of thermal resistance and preventing mold growth in critical environments such as hospitals, airports, and luxury hotels.
For liquefied natural gas transportation and process piping operating at sub-zero temperatures, standard elastomers fracture. Kingflex engineered cryogenic foam systems maintain their flexibility and structural integrity at extreme negative temperatures, reducing boiling-off rates.
Open-cell elastomeric rubber foams act as robust sound-absorbing systems, trapping air-borne noise. Frequently installed in duct linings, generator enclosures, and partition walls, these materials decouple vibration frequencies and lower overall noise levels.
Select from our verified production lists for custom project blueprints and design submittals.
Thickness: 6mm-50mm | Density: 40-55kg/m³ | NBR/PVC Base
Thickness: 9mm-40mm | ID: 6mm-114mm | Temp: -40℃ to 105℃
Micro-cellular arrangement details showing >98% closed cells.
Open-cell noise attenuation structure specifications.
Our standard NBR/PVC sheets boast a compression resilience of over 80%. The cellular structure foams evenly and fully, guaranteeing stable thermal conductivity over decades of use. Ideal for complex geometries, duct wraps, large vessels, and plumbing headers.
State-of-the-art pipe spraying equipment coats the inner walls of our insulation tubes, simplifying installation and preventing adhesion failures on metal substrates. They effectively reduce pipe freezing and corrosion risks under insulation (CUI).
Kingflex products are fire-retardant and self-extinguishing when exposed to fire. Formulated without volatile organic compounds (VOCs) or halogenated flame retardants, they meet modern indoor air quality requirements.
High-fidelity imagery detailing product variations, structural compositions, and packing standards.
Technical classification directory for engineering procurement drafts.
Standard flexible design, customized sizing, engineered for efficient HVAC installations.
Enhanced barrier coating prevents direct exposure to chemical cleaning agents and saline environments.
High elasticity factor, simplifying installation around complex pipe joints and bends.
Standard NBR/PVC pipe insulation, fire-resistant, designed for HVAC and plumbing.
Optimized cell distribution provides balanced thermal resistance and moisture control.
Optimized for chilled and hot water lines, minimizing heat loss in central air conditioning networks.
Specially formulated for ultra-low temperature and cryogenic liquid piping environments.
Flexible insulation designed to prevent thermal stress fractures in cryogenic piping.
Engineered for severe environments requiring low-temperature flexibility and high humidity resistance.
High-density cryogenic barrier system designed to limit liquid phase boil-off in processing loops.
High-density structural core mineral wool, offering class A1 fire resistance for high-temperature walls and roofs.
Flexible mineral fiber matrix roll, designed for industrial kilns, heat exchangers, and boiler systems.
A visual overview of our raw materials handling, packaging, testing, and shipping processes.
Technical diagnostics and answers to help guide your purchasing and engineering decisions.
A1: It is primarily used for HVAC duct wrap, air conditioning piping lines, building insulation envelopes, industrial process lines, and sound isolation. The material prevents heat gain/loss and controls condensation on cold piping systems.
A2: Yes. Our rubber foam insulation is formulated with flame retardants, allowing it to meet Class 0 and Class 1 standards (BS 476 Part 6 & 7), as well as UL94 standards. It is self-extinguishing and does not propagate flame spread.
A3: Rubber foam is a flexible, closed-cell, highly moisture-resistant material suited for plumbing, HVAC, and condensation control. Rock wool is a high-temperature resistant, non-combustible fibrous mineral structure best suited for thermal systems, industrial furnaces, and firewalls.
A4: Yes, we provide full OEM and ODM services. We can customize sheet dimensions, pipe internal diameters (ID), insulation thicknesses (6mm to 50mm), and produce self-adhesive or foil-faced variations to meet project specifications.
A5: Our materials have passed tests for BS 476, CE, REACH, RoHS, UL94, and ASTM. This guarantees that our products meet European, American, and British regulatory standards.
A6: Yes. Every production run has a distinct batch tracking code printed directly onto the packaging material. This enables our quality assurance lab to trace raw material inputs and verify production logs.
A7: We can produce thicknesses ranging from 6mm to 50mm. Roll widths and lengths can be modified to reduce onsite cutting waste.
A8: Under normal indoor or protected outdoor conditions, the service life ranges from 10 to 15 years. Using UV protective finishes or foil facings can extend the operational life of outdoor installations.
Review specifications and request quotes for our complete insulation collection.
